I think the first point of discussion must be: "What code article applies, 430 or 440?". That being said, it is my opinion that 430 applies and that we can't use the minimum circuit ampacity and maximum OCPD rating on the nameplate as there are no provisions for that in 430.

* Each A.U. (Evaporator) has 25KW Electric Defrost (30.08 Amps @ 460V 3Ã˜), which is Non-Coincidental with the Blowers of a given unit.One A.U. will go into Defrost at a time. The remaining A.U.s will continue running during Defrost.